Processed on 2024-03-04 13:15:06 PST.

Disclaimer: Data presented here come from a variety of sources and do not represent official EPA measurements. Please visit AirNow for official measurements.

Cumulative exposure to smoke is an important public health metric. This report summarizes the cumulative number of days air quality monitors in Louisiana spent in each AQI category during the the month of February.

The tables below include only permanent monitors measuring PM2.5 and show cumulative exposure under existing NAAQS (National Ambient Air Quality Standards) and under the 2024 revised standards for PM2.5.

In the tables and plots below, ‘Old’ designates cumulative days calculated using the 2023 PM2.5 NAAQS while ‘New’ is calculated using the 2024 revised PM2.5 NAAQS. The impact of the NAAQS revision is quite clear.

February in Louisiana

February 2014 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 175 18 0 0 0 0 3
New 143 50 0 0 0 0 3

February 2015 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 165 74 0 0 0 0 13
New 120 119 0 0 0 0 13

February 2016 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 205 38 0 0 0 0 18
New 141 102 0 0 0 0 18

February 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 206 23 0 0 0 0 23
New 153 76 0 0 0 0 23

February 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 227 10 0 0 0 0 15
New 196 41 0 0 0 0 15

February 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 217 28 0 0 0 0 7
New 172 73 0 0 0 0 7

February 2020 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 246 8 0 0 0 0 7
New 214 40 0 0 0 0 7

February 2021 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 213 20 0 0 0 0 19
New 155 78 0 0 0 0 19

February 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 182 38 0 0 0 0 32
New 130 90 0 0 0 0 32

February 2023 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 186 28 0 0 0 0 10
New 145 69 0 0 0 0 10